Lunase moon phase watch mechanism
(genuineideas.com)70 points by huhtenberg 3 months ago
70 points by huhtenberg 3 months ago
btw here's a simple SVG animation I made while working out the code: http://virtualgeoff/demos/moonphases/
I’ve had the “discussion” about hour-25 vs rolling over to hour-0 before, but in a video timecode sense. Hour-25 does not exist in timecode, so hour-25 is just wrong in that sense. I’ve seen some very strange things that happen when it rolls over in the middle of a video clip.
I expected to see mention of the volvelle - a medieval device made of paper that could approximate the phase of the moon by moving a circular hole around a carefully designed track. There’s a long explanation of it at https://astrolabeproject.com/downloads/volvelle/deconstructi...
while we’re all promoting our moon phase apps, I made one for Apple Watch: https://apps.apple.com/us/app/moon-sign-simplicity-for-watch...
Mechanical watch:
https://monochrome-watches.com/the-elegant-mixture-of-time-a...
Prague’s astronomical clock does that too:
https://en.wikipedia.org/wiki/Prague_astronomical_clock#Moon
More about spherical moonphases:
https://www.the1916company.com/blog/variations-on-the-moonph...
A smartwatch complication:
https://www.david-smith.org/blog/2019/09/26/moon-plus-plus/
> Geneva Moon seeks to provide a highly accurate, visually pleasing indication of what the moon looks like right now, right where you are. My goal was to make it so that if you look down at your wrist and then up into the sky the images you see should match.
It’s always nice to find another true lunatic.
I made a series of clocks that only track moon phase.
> Improbable stars
That was funny! (BTW the middle 'Horned moon drawing' has them too)
Does the "double bosom" occlusion mechanism have a proper name? I always thought it was a bit daft — excusable on watches perhaps — but on larger clocks where there's plenty of space why not just have a half black sphere that rotates once per lunar month? (Even better would be a small model of the moon with a half black shade rotating around it).
Anyway: I made a (web) clock with that shows the moon position and phase: https://sunclock.net